The HD D FA 21mm F2.4 uses a mechanical manual focus ring, like many SLR lenses. I won't say the same about the focus ring movement, though. The Pentax system isn't a good pick for serious video work, however, so we don't expect it to be a concern for many customers. It's not loud enough to hear across a room, but it is audible on the video soundtrack, assuming you are using the K-1's internal mic to record audio. The motor is rather quiet, but the lens makes some noise during the focus process-its mechanically coupled focus ring turns along with autofocus and you can hear a little bit of whir when it does. This is a more up-to-date approach than the screw-driven autofocus systems that most other FA Limited entries use, as well as what you get with most DA Limited lenses. It does include an HD coating to suppress flare and reflections, however, as well as anti-smudge fluorine on the glass, which Pentax denotes with the Super Protect (SP) label.Ī DC motor drives focus. The lens does not have an IP rating, nor do any Pentax cameras. We've touched on the weather protection already-the 21mm sports the WR designation, which indicates that it is weather-resistant, though not to the same extent as All Weather lenses such as the D FA 150-450mm AW zoom. It's a much easier lens to carry and balances well on the 2.2-pound K-1 Mark II. The new lens measures 3.5 by 2.9 inches and weighs just 14.7 ounces. Both of these lenses are relatively massive and the FA 21mm is more in line with what we expect from a wide prime. In recent years, only the hefty, autofocusing Pentax 15-30mm F2.8 (5.7 by 3.9 inches, 2.3 pounds) and manual focus, third-party Irix 21mm F1.4 Dragonfly (4.1 by 3.7 inches, 1.8 pounds) covered the angle. The HD D FA 21mm F2.4 Limited fills a big gap in the company's full-frame lens line. But if you're an APS-C owner looking for a wide prime lens, we think the DA Limited 15mm F4 is the best pick for the system it's vastly superior to the old DA 14mm F2.8, which it essentially replaced in the lineup. The 20-40mm gathers nearly as much light at the same angle, includes weather protection, isn't too far off in size from the FA 21mm, and is purpose-built for APS-C sensors.
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How to Set Up Two-Factor Authenticationįor Pentax system owners who care more about APS-C than full-frame, the HD DA 20-40mm F2.8-4 Limited is a more sensible purchase it costs $800 but has been around long enough to go on sale (at press time, you can grab it around $500).How to Record the Screen on Your Windows PC or Mac.
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